dc.contributor.author | Sanvito, Stefano | en |
dc.contributor.author | Droghetti, Andrea | en |
dc.date.accessioned | 2010-06-16T14:54:55Z | |
dc.date.available | 2010-06-16T14:54:55Z | |
dc.date.issued | 2008 | en |
dc.date.submitted | 2008 | en |
dc.identifier.citation | Andrea Droghetti, C.D. Pemmaraju, and Stefano Sanvito, Predicting d0 magnetism: Self-interaction correction scheme, Physical Review B, 78, 2008, 140404(R) | en |
dc.identifier.other | Y | en |
dc.identifier.uri | http://hdl.handle.net/2262/40161 | |
dc.description | PUBLISHED | en |
dc.description.abstract | Predicting magnetism originating from 2p orbitals is a delicate problem, which depends on the subtle interplay between covalency and Hund?s coupling. Calculations based on density-functional theory and the local spin-density approximation fail in two remarkably different ways. On one hand the excessive delocalization of spin-polarized holes leads to half-metallic ground states and the expectation of room-temperature ferromagnetism. On the other hand, in some cases a magnetic ground state may not be predicted at all. We demonstrate that a simple self-interaction correction scheme modifies both these situations via an enhanced localization of the holes responsible for the magnetism and possibly Jahn-Teller distortion. In both cases the ground state becomes insulating and the magnetic coupling between the impurities becomes weak. | en |
dc.format.extent | 140404(R) | en |
dc.language.iso | en | en |
dc.relation.ispartofseries | Physical Review B | en |
dc.relation.ispartofseries | 78 | en |
dc.rights | Y | en |
dc.subject | Physics | en |
dc.title | Predicting d0 magnetism: Self-interaction correction scheme | en |
dc.type | Journal Article | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/sanvitos | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/droghea | en |
dc.identifier.rssinternalid | 56807 | en |
dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevB.78.140404 | en |
dc.subject.TCDTheme | Nanoscience & Materials | en |
dc.identifier.rssuri | http://link.aps.org/doi/10.1103/PhysRevB.78.140404 | en |
dc.identifier.orcid_id | 0000-0002-0291-715X | en |
dc.contributor.sponsor | Science Foundation Ireland (SFI) | en |